The C3 internal corner is a GRP (Glass Reinforced Polyester) pre-formed external corner, manufactured from durable fibre glass, that is used where two fillet trims meet. This corner eliminates the need to mitre corners of [D260](https://www.mgnbm.co.uk/grp-internal-fillet-corner-trim-c3/) wall fillet trim.

Brand Name	PrinciPal Building Products
Colour	string
Material	fibre glass
Manufacturer Model No	GRPTRIM075
Wear Type	string
Type	string
Certifications Met	string
Country of Origin	string
Protects From	string
Waterproof	string
Number of Pockets	string
Benefits	Moulded hot pressed pre-formed external corner, Used where two fillet trims meet, Lightweight & durable, Easy to apply, UV resistant, Crack-resistant, Long-lasting